Automatic siphon.



No. 649Mo. Patented May s, 1900.1.

'6. LAND. Auonmc' s'lPHon.

(Auplicaton led July 1, 1899.) (No Model.)

UNITED STATES y PATENT OFFICE.

GORDON LAND, OF DENVER, COLORADO.

AUTOMATIC SIPHON.

SPECIFICATION forming part Of Letters Patent NO. 649,170, dated May 8,1900. Application fled July 1, 1899. Serial No. 722,568. (No model.)

T0 all whom it may concern:

Be it known that I, GORDON LAND, a citizen of the United States,residing at Denver, Colorado, have invented certain new and usefulImprovements in Automatic Siphons, of which the following is aspecification.

My invention relates to improvements in flush-tank siphons designed forthe automatic flushing of sewers. Heretofore in devices used for thispurpose the inability to rod the line orinspect the same has beenoccasioned by the fact of the various siphons being embedded in concreteand so placed as to render this necessary work impossible. I have soughtin my device to produce a ready means to accomplish this work bydesigning a siphon wherein all the part-s are always accessible and maybe readily removed, yet at the same time my siphon embraces no movingparts except in such cases as the device may be used as a pull-tanksiphon, the construction being such as to permit of this action withoutin any way interfering with its use as an automatic device.

The invention is illustrated in the accompanying drawings, in which-Figure lis a central vertical section through the flush-tank and siphon,Figs. 2 and 3 are detail views.

To more particularly describe my invention, the bell or intake limb A ismade with beveled sides and annular in form a gradual taper beingemployed so as to permit its sliding on or off the sloping tins l? castupon the upper end of the discharge or inverted part 13 ofthe siphon,This arrangement of the parts holds the bell in its proper place andprevents its slipping down farther than is desired, while at the sametime it prevents any tremor or movement of the bell during the action ofthe siphon. This Siphon-bell or intake-limb is provided with an annularair-space bat thetop and avent or sniff hole b2 near the bottom orrlower part of the bell. The discharge-pipe comprises the vertical part13, extending downward to the bend B' and then upward at B2 to thelateral discharge-outlet B3.

The annular air-space described in the bell is for the purpose ofreceiving the upper end of the blow-off pipe O. This blow-off pipe ispreferably of lead and is made to pass down between the bell and outsideof the main discharge-limb of the siphon, forming a trap or water seal,and having its discharge end connected by an adjustable pipe-union at apoint D outside and just above the water-level in the discharge of mainsiphon. The purpose of this arrangement of a blow-o pipe is to permit ofits recovery of a water seal during the discharge of the lmain Siphonand at the same time prevent its action as a subsidiary Siphon.

I am aware that various devices are in use to accomplish the purpose ofa blow-od pipe; but by reason of their arrangement they all act assubsidiary siphons and are liable to become clogged and inoperative. vInmy device this cannot occur, as no water is permitted to pass throughthe blow-off pipe during its action, which is onlybrief and always priorto the action of the main siphon, which it starts.

The office of the annular air-chamberin the upper part of the bell is toafford a perfect means of preventing the action of the blow-o pipe as anauxiliary siphon. It will thus be seen that in this combination of partsa perfectly-automatic intermittent siphon is secured, and at the sametime provision is made for its being used as a pull-tank, whichis anovel feature in this connection, all other devices heretofore offeredfor such purposes being deficient in this'respect.

A bar a, connecting the opposite sides of the depression in the top ofthe bell, serves for the connection of `a chain or the like when Y' thesiphon is to be used as a pull-Siphon.

The flush-tank is lettered E in the drawings, e' being the inlet for theflushing-water. The tank is provided with a pocket in its lower end, inwhich the discharge-pipe is seated without being embedded in concrete,as is generally done.

In combination, the discharge-pipe, the bell at the intake end thereofwith an annular space between and the blow-od pipe having one endextending freely up into said annular space and the other end adjustablyand detachably connected with the outlet end of said discharge-pipe,substantially as dei scribed.

In testimony whereof I affix my signature in presence of two witnesses.

GORDON LAND.

Witnesses:

CHAs. A. BEANHAM, ALONZO RICE.

ICO

